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Jenifer Leidelmeijer

(she/her/ella)

"...a worker in the field of sediments." — Wentworth, 1922

Jenifer’s research is focused on supporting projects in paleohydrology, paleoclimatology, sedimentology, geochemistry, and paleo-fire by producing multi-proxy datasets utilizing laboratory based physical and chemical analyses on a variety of sediment archives including lakes, marshes, paleo-wetland deposits, and others.

Professional Experience

  • 2021 – present: Geologist, U.S. Geological Survey

  • 2018 – 2021: Physical Science Technician (Student Trainee), U.S. Geological Survey

Education and Certifications

  • M.Sc., Geology, California State University, Fullerton

  • B.S., Geology, California State University, Long Beach

Science and Products

Inbuilt age, residence time, and inherited age from radiocarbon dates of modern fires and late Holocene deposits, Western Transverse Ranges, California

Radiocarbon dates of sedimentary deposits include the elapsed time between formation of the organic material and deposition at the sample site, known as the inherited age. Long inherited ages reduce the accuracy of estimates of the timing of depositional events used to infer paleoclimate change, fire histories, and paleoearthquake timing. An inherited age distribution combines the inbuilt age dis
Authors
Katherine M. Scharer, Devin McPhillips, Jenifer Amy Leidelmeijer, Matthew Kirby
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center

Non-USGS Publications**

Leidelmeijer, J.A., Kirby, M.E.C., MacDonald, G., Carlin, J.A., Avila, J., Han, J., Nauman, B., Loyd, S., Nichols, K., and Ramezan, R., 2021, Younger Dryas to early Holocene (12.9 to 8.1 ka) limnological and hydrological change at Barley Lake, California (northern California Coast Range): Quaternary Research, 103, 193-207. doi:10.1017/qua.2021.9
Kirby, M., Barbosa, J., Carlin, J., MacDonald, G., Leidelmeijer, J., Bonuso, N., . . . Ramezan, R., 2023, Holocene hydroclimatic variability recorded in sediments from Maddox Lake (northern California Coast Range): Quaternary Research, 1-19. doi:10.1017/qua.2023.18

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Science and Products

Inbuilt age, residence time, and inherited age from radiocarbon dates of modern fires and late Holocene deposits, Western Transverse Ranges, California

Radiocarbon dates of sedimentary deposits include the elapsed time between formation of the organic material and deposition at the sample site, known as the inherited age. Long inherited ages reduce the accuracy of estimates of the timing of depositional events used to infer paleoclimate change, fire histories, and paleoearthquake timing. An inherited age distribution combines the inbuilt age dis
Authors
Katherine M. Scharer, Devin McPhillips, Jenifer Amy Leidelmeijer, Matthew Kirby
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science Center

Non-USGS Publications**

Leidelmeijer, J.A., Kirby, M.E.C., MacDonald, G., Carlin, J.A., Avila, J., Han, J., Nauman, B., Loyd, S., Nichols, K., and Ramezan, R., 2021, Younger Dryas to early Holocene (12.9 to 8.1 ka) limnological and hydrological change at Barley Lake, California (northern California Coast Range): Quaternary Research, 103, 193-207. doi:10.1017/qua.2021.9
Kirby, M., Barbosa, J., Carlin, J., MacDonald, G., Leidelmeijer, J., Bonuso, N., . . . Ramezan, R., 2023, Holocene hydroclimatic variability recorded in sediments from Maddox Lake (northern California Coast Range): Quaternary Research, 1-19. doi:10.1017/qua.2023.18

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

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